Embedded NAS OS based on OpenSolaris and supported ZFS.
Looks a bit out of date. It has possibility to create own installation scripts.

Supported add-on features:
Firefly/iTunes media server (32-bit): Install guide, download mt-daapd
Mediatomb UPnP server (32-bit): Install guide, download section
napp-it (graphical web admin by Alka Guenther, version 0.20+: Install Guide, download napp-it)
Transmission cli/web bit torrent client/server (available since binary kit 124 in download section)
Aria2c 1.9.3 (HTTP/HTTPS, FTP, BitTorrent and Metalink)
tmux 1.1 (terminal multiplexer)
lighttpd (Web server: Install guide, download lighttpd)
nginx (Web server: Install guide, download nginx)
Netatalk (Apple Talk Fileserver: download netatalk)
elinks (text based browser)
wget/curl (retrieving files using HTTP, HTTPS and FTP)
ddclient/inadyn (dynamic DNS clients)
glusterfs 3.0 (clustered storage solution)